Study of micro grinding of glass using on machine fabricated polycrystalline diamond (PCD) by micro EDM

... performance of PCD tool in vertical micro- grinding of optical glasses (a) Wear mechanism studies of PCD tool while micro- grinding of glass (b) On- machine monitoring of tool conditioning IV Investigation ... studies of micro- grinding of glass material (a( To study the effect of different operating parameters for the EDM of Polycrystalline diamond (PCD) blank and to achieve the optimum Introduction condition ... one proposed by Hung et al, where micro- EDM with precision co-deposition was used to form a micro- electrode Metal substrate was micro- EDMed to 50 micron diameter and diamond particle of 0-2 micron...

A study of opening conversation on the phone in english and vietnamese

... Representation of Telephone Openings in Vietnamese Like English, Conversation Openings in English and Vietnamese from 70 telephone conversations in Vietnamese and 40 questionares in Vietnamese, we can ... pragmatic aspects of telephone conversation openings on the basis of closing conversation on telephone 1.7 ORGANIZATION OF THE STUDY contrastive analysis of the data collected from dialogues in textbooks, ... English and Vietnamese Speakers, but to Firstly, in the representation of telephone conversation everyone who uses and speaks a language opening in both languages, the grammar and vocabulary of the...

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Báo cáo y học: "Ethnobotanical study of indigenous knowledge on medicinal plant use by traditional healers in Oshikoto region, Namibia" pdf

... on the use of indigenous medicinal plants by traditional healers No plant samples were collected Forty seven respondents with a traditional knowledge of useful medicinal plants, mostly either ... Percentage of medicinal plant parts used by the traditional healers 2-5 Days Gonorrhea -7days Gonorrhea -7days Regarding to the preparation method (fresh and dry) of used medicinal plants (Figure ... report on the medicinal plant use by the local traditional healers The purpose of this study is to assess traditional medicinal plant knowledge specifically with regard to the traditional healer’s...

Báo cáo y học: "Surgical correction of ruptured aneurysms of the sinus of Valsalva using on-pump beating-heart techniqu" potx

... repair ruptured aneurysms of the sinus of Valsalva: via the terminal chamber, via the aortic root, and via a combined approach Transaortic repair of ruptured aneurysms of the sinus of Valsalva may ... with ruptured aneurysms of the sinus of Valsalva is 1-2 years Congestive heart failure is known to be the main cause of death [20] Hence, the presence of left-to-right shunt caused by ruptured aneurysms ... surgical treatment of ruptured aneurysm in sinus of Valsalva Chin Med J (Engl) 2003, 116:1047-1050 Lukács L, Bartek I, Haán A, Hankóczy J, Arvay A: Ruptured aneurysms of the sinus of Valsalva Eur J...

A Vietnamese-American cross cultural study of giving comments on contestants’ performance by judges in Vietnam Idol and American Idol

... cross- cultural study of giving comments on contestants’ performance by judges in Vietnam and American Idol to find out the similarities and differences in the manner of giving comments of Vietnamese and ... necessary) The similarities and differences in the way of giving comments by Vietnamese and American judges are drawn from detailed and critical analysis of data Part C: CONCLUSION Summary of the ... used by Vietnamese judges and American ones V COMMENTS ON THE INFORMANTS In the two shows Vietnam Idol and American Idol, there are two groups of informants The Vietnamese group consists of informants...

A study of ultrasonic effects on the marine biofouling organism of barnacle, amphibalanus amphitrite

... fouling organisms, barnacles are a major problem due to their sizes and gregarious nature In this thesis, a systematic study of ultrasound on the marine fouling organism of barnacle, Amphibalanus amphitrite ... day barnacle, (B) is the image of day barnacle, (C) is the image of day barnacle, (D) is the image of day barnacle and (E) is the image of day barnacle 96 Figure 6.1 The schematic ... the cavitation effects on the removal or damage of juvenile barnacles 1.7 Thesis organization In this chapter, an introduction on marine biofouling, especially barnacle induced marine biofouling...

Study of oxide film on copper electrode by in situ photothermal spectroscopy

... behavior of an oxide film on a copper electrode in a 0.1 N NaOH solution has been studied by the in- situ photothermal spectroscopy (PTS) method using a polyvinylidene difluoride (PVDF) pyroelectric film ... yield information regarding only the rate of reaction, the influence of diffusion, concentration, temperature, and so on They cannot give information about the chemical identity, structure, configuration, ... polarization, an oxide film was formed on the Au electrode and the corresponding PAS signal shows an increase While continuous cathodic polarization reduces the oxide film so the corresponding photoacoustic...

A numerical study of elastica using constrained optimization methods

... and spatial elastica Planar elastica comprise three mostly encountered cases: pin-pin elastica, clamp-pin elastica, and clamp-clamp elastica When both ends of elastica are clamped, and the system ... Diagram of D − λ1 / Pcr (spatial clamp-clamp elastica) ………… … 82 Figure 4.38 Diagram of D − λ3 / Pcr (spatial clamp-clamp elastica) …………….…82 Figure 4.39 Diagram of D − Strain energy (spatial clamp-clamp ... Superimposition of all configurations of clamp-pin elastica ……….69 Figure 4.24 Geometry of planar clamp-clamp elastica. ……………………… … 70 Figure 4.25 Diagram of D − P / Pcr (clamp-clamp elastica) ……………………….70...

A study of photomask defects on nanometer feature photolithography

... illumination as the on- axis component is been filtered out 1.3.1 Conventional Illumination Conventional illumination, also known as three-beam imaging, consists of on axis and off axis illumination ... the Gaussian tail of neighboring features 14 (a) Features without OPC (b) OPC done by biasing, addition of assist features (c) Patterned image on wafer Fig 1.5 Application of OPC 15 AF (a) Dense ... photolithography, features on a photomask are scaled down onto a wafer by the demagnification, M, of an optical lens In projection photolithography, CD of resist feature on the wafer (CDW) is linearly...

First principles study of benzene adsorption on transition metal surfaces

... FIRST PRINCIPLES STUDY OF BENZENE ADSORPTION ON TRANSITION METAL SURFACES HONG WON KEON (B Eng.(Hons.), Sungkyunkwan University, Republic of Korea) A THESIS SUBMITTED FOR THE DEGREE OF MASTER ... Electron volt fcc Face-centered cubic hcp Hexagonal closed-packed ΔEads Adsorption energy ΔHads Heat of Adsorption ΔΦ Change in workfunction of metal surface upon adsorption Φ Workfunction of metal ... Interaction in Heterogeneous Catalysis In this section, the basic concepts of chemical bonding to transition metal surfaces will be understood First, carbon monoxide interaction with the metal surface...

Tài liệu Effect modification of air pollution on Urinary 8-Hydroxy-2’-Deoxyguanosine by genotypes: an application of the multiple testing procedure to identify significant SNP interactions ppt

... al.: Effect modification of air pollution on Urinary 8-Hydroxy-2’-Deoxyguanosine by genotypes: an application of the multiple testing procedure to identify significant SNP interactions Environmental ... 8-hydroxydeoxyguanosine and indoor air pollution among non-smoking office employees Environ Res 2007, 103:331-337 20 Chuang KJ, Chang CC, Su TC, Lee CT, Tang CS: The effect of urban air pollution on inflammation, ... examined effect modification by each of candidate SNP via adding an interaction term of the SNP and the pollutant simultaneously with both the main effect terms adjusting for the same covariates as the...

Báo cáo hóa học: " The Nature of Surface Oxides on Corrosion-Resistant Nickel Alloy Covered by Alkaline Water docx

... the nature of the surface oxides and how these affect the corrosion resistance of C22 nickel alloy covered by alkaline water electrode was held for h at each film formation potential to grow the ... for this passive film formation at 0.1 V on nickel alloy C22 The M–S analysis of the oxide layer on nickel alloy C22 shows that the oxide film on the nickel alloy is semiconducting when formed in ... to the generation of the cation vacancies at film/solution interface through the oxidative ejection of cations from the film [8] This result is consistent with the above Nyquist plots where the...

Metabolomic study of water hyacinth exposed to CuCI2, FeCI3, Na2HPO4 solution by GC m

... METABOLOMIC STUDY OF WATER HYACINTH EXPOSED TO CuCl2, FeCl3 AND Na2HPO4 SOLUTIONS BY GC- MS HUANG XULEI (M Sc., PEKING UNIVERSITY) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF SCIENCE ... cultured in 0.3 mmol FeCl3, 1.2 mmol CuCl2 and 3.46 mmol Na2HPO4 solution for 15 days, respectively The metabolic profiles of roots, stems and leaves of water hyacinth were determined by GC- MS and further ... study, water hyacinth was exposed to 0.3 mmol FeCl3, 1.2 mmol CuCl2 and 3.46 mmol Na2HPO4 concentrations for 15 days, respectively The metabolic profiles of roots, stems and leaves of water hyacinth...

Growth of silicon nanowires on UV structurable glass using self organized nucleation centres

... possibility of having grown silica or silicon nitride instead of pure silicon nanowires However, the nanowires and the photostructurable glass were expected to contain mainly silicon and oxygen ... such that the growth of silicon nanowires is favoured However, the initialization of the nanowire growth requires additional investigations The chemical composition of the nanowires was checked ... speciﬁc resistance of 9.6 Â 10À4 to Â 10À3 O cm Discussion and conclusions Silicon nanowires were grown successfully on photostructurable glass without the need of an additional catalyst and were...

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